Hesperia, California has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 8.3 °C (low) to 24.5 °C (high). Annual precipitation averages 195.8 Millimeters. Hesperia is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.6 °C | 14.7 °C | 38.1 mm |
| February | 2.1 °C | 15.9 °C | 48.51 mm |
| March | 4.2 °C | 19.2 °C | 27.18 mm |
| April | 6.4 °C | 22.6 °C | 11.18 mm |
| May | 9.9 °C | 26.8 °C | 3.56 mm |
| June | 13.9 °C | 31.9 °C | 1.52 mm |
| July | 17.6 °C | 35.3 °C | 4.83 mm |
| August | 17.2 °C | 35.5 °C | 2.79 mm |
| September | 14.5 °C | 32.6 °C | 3.56 mm |
| October | 8.9 °C | 26.1 °C | 11.94 mm |
| November | 3.4 °C | 19.2 °C | 10.41 mm |
| December | 0.3 °C | 14.1 °C | 32.26 mm |
| Annual | 8.3 °C | 24.5 °C | 195.84 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8b : -9.4°C to -6.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |